Well it looks like a extremely nasty spot on the flop. When UTG2 calls you should expect both players to go in when you push. And you can also be sure that UTG2 is on a draw hand instead of a set. The question is what BU have: Is he ever flatting with 99-JJ and raise on this flop?

Given how unclear the situation is, you can play it safe by flatting the 3bet on the flop and see how things develop on the turn. Here when the A of diamond comes you can certainly find a fold then.

Well, the problem on flop is that if you are going to flat on flop. What's your plan on blank turn? It will be pretty hard for us to continue there and most likely the guy will even 2nd barrel. For that given reason I'd make my decision right on flop, either I am going to continue or not. Although for the given reasons that BU is taking a raise into multiway pot and after UTG2 even calls which might be even a trap I'd be towards folding my hand than going for thin spot to go broke.

Well, the problem on flop is that if you are going to flat on flop. What's your plan on blank turn? It will be pretty hard for us to continue there and most likely the guy will even 2nd barrel. For that given reason I'd make my decision right on flop, either I am going to continue or not. Although for the given reasons that BU is taking a raise into multiway pot and after UTG2 even calls which might be even a trap I'd be towards folding my hand than going for thin spot to go broke.

Best Regards.

When I agree with most of what you said I don't think UTG2 can be trapping. Any slow-played set there will show its strength and raise.

When I agree with most of what you said I don't think UTG2 can be trapping. Any slow-played set there will show its strength and raise.

Not a guy who is playing 58/12 who doesn't even understand what's good odds or bad odds.
Slowplay = teh nuts with set for him. :> Way too many times seen that. But no doubt that he also may have drawing hands/weaker made hands in his range.